Find the exact value of cos 120°.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. -0.5
the exact value of cos 120°
cos 120° = cos (90° + 30°) = - cos 30° = -0.5
SSC CGL 2023 PYQ — Question 13
SSC CGL Tier II - 6 March 2023 - Shift 1 • Quantitative Aptitude • Q13